Monitoring of 12-oxo-Phytodienoic Acid (OPDA)-Induced Expression Changes in Arabidopsis by cDNA Macroarray

Jasmonates are known as growth regulators, which have cyclopentanone or cyclopentenone ring, and synthesized through lipoxygenase pathway. Jasmonates are widely distributed in the plant kingdom and modulates wounding responses, disease responses, and anther development. Some kinds of jasmonates were shown to have specific effects on plants. 12-oxo-phytodienoic acid (OPDA), a precursor for jasmonic acid (JA) biosynthesis, promotes tendril coiling, and this effect is stronger than MeJA (Falkenstein E., et al., 1991). However, except for the fact, little is known about the OPDA specific function in various physiological events.